I am also willing to accept spanish/english or spanish/chinese language exchange.

My chinese is pretty good, and if you are at a basic level I could help you very, very much (Also i'm not the typical chinese person trying to study english/spanish from you, or a sexpat trying to get laid, I understand what a proper language exchange is
all about)

I'm arriving to Beijing in like 2 weeks and I'm staying for 3 months more or less...

Anyways, I'm a Spanish native speaker (Chilean). So you know, Chileans don't have an accent like Spanish or Argentineans people do. I don't say it's good or bad since the original way was the Spanish way, but whatever, you can spice it up adding an accent later.
lol